A keypad door lock. Knowing the door is always (automatically) locked, being able to leave the house without a key, and being able to let someone else when I'm not there either with my phone, or by giving them a code.. I'm living in the future.
Do you live somewhere very cold? If so, use lithium batteries. They're significantly more tolerant of low temperatures. Going from akalines to lithiums made a huge difference for us.
I have an NFC dot on the doorframe and unlock my door by holding my phone up to it. It's definitely slower than using the keypad, and probably slower than getting out a key, but it's way more satisfying than either.
I’ve done this for a long time now. One keypad in front and another in back. I proactively change the batteries once a year. I also have a keypad for the garage. I haven’t carried a house key in years.
